The Consultative Committee of members of Parliament for Railway Zones in constituted by the

1. The question asks which authority constitutes the Consultative Committees of Members of Parliament (MPs) for Railway Zones. 2. Consultative Committees are attached to various ministries of the Central Government and provide a forum for informal discussion between Ministers and MPs on the policies and working of the ministries. 3. The guidelines for the constitution and functioning of these committees are formulated by the Ministry of Parliamentary Affairs (Option C). 4. The Ministry of Parliamentary Affairs constitutes these committees and makes arrangements for their meetings. 5. While the committee relates to the railways (Option B) and involves MPs (related to Parliament and the President - Option A), the specific administrative responsibility for constituting these cross-ministry consultative bodies lies with the Ministry of Parliamentary Affairs.